I'm a new learner of OMNeT++. When I tried to build the project, the software warns me that " Makefile.inc does not exist, add the OMNeT++ bin directory to the path so that opp_configfilepath can be found, or set the OMNETPP_CONFIGFILE variable to point to Makefile.inc. " However, the Makefile.inc exists.
I have added the bin to the path and set OMNETPP_CONFIGFILE as the path of Makefile.inc. I also tried the ways to use the msys mingw to excute make, which is mentioned in the post of jaykobbiejnrbut I got the warning again.
You MUST use the provided mingwenv.cmd command to execute all omnetpp related commands. i.e. always work in the console (even the IDE must be started from there)